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Meeting MS&T24: Materials Science & Technology
Symposium Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
Presentation Title Stabilization of Alumina Dispersed Slurry by Controlling pH
Author(s) Pulkin Gupta, Raghav Mudra, Shikhar Krishn Jha
On-Site Speaker (Planned) Shikhar Krishn Jha
Abstract Scope The study focuses on the influence of pH on the dispersion and stabilization of Al2O3 slurry utilizing dispersant and PVA binder. Zeta-potential characteristics reveal a significant influence of slurry pH on its stability behavior. These findings are supported by the sedimentation behaviour, wherein slurry having low zeta potential values sediments at a much faster as compared to others. Further, thermogravimetric and FTIR studies have been conducted to estimate the co-adsorption behavior of both the dispersant and binder. A higher amount of polymer is adsorbed on Al2O3 surface below the isoelectric point (IEP) of the medium. FTIR studies predict the preferential adsorption of dispersant over binder due to its ionic nature. Therefore, indicating the formation of chemical bonds with the former and hydrogen bonds with the latter. Further, these studies lend support to propose the interaction mechanism prevailing between the various species present in the system.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Dense Complex Shape Ceramic Components Fabricated By Digital Light Printing (DLP) and Liquid Silicon Infiltration (LSI)
Densification and Microstructure Evolution of Alumina Structures via Direct Ink Writing
Density Improvement of Binder Jet Printed MnZn Ferrite Cores via Pre-and Post- Sintering Improvement Strategies
Direct Ink Writing of SiOC Structure from Preceramic Polymer containing Inactive Fillers
Dispersion of PMN-PZT for Direct Ink Writing
Fused Filament Fabrication of Ceramic Matrix Composite Preforms Via Thermo-Oxidative Stabilization of Polyetheretherketone
Influence of Printing Parameters on the Stability and Quality of 3D Printed Geopolymers from Copper Mine Tailings
Interface Stability of Iron-Carbide Materials Fabricated via Laser-Direct Energy Deposition
Irradiative Ceramization of Chemically Bound Phosphate Ceramics (CBPCs) to Enable Direct Additive Manufacturing of Ceramic Composites
Laser-Directed Energy Deposition Additive Manufacturing of Lunar Highlands Simulant (LHS-1) Lunar Regolith Simulant for In Situ Resource Utilization
Multi Ceramic Additive Manufacturing Based on Novel Digital Light Processing Technology
Optimizing SiC Slurries for Robocasting High-Performance SiC.
Rapid Volumetric Microwave Curing of Silicon Nitride Ceramic Binder Mixtures
Stabilization of Alumina Dispersed Slurry by Controlling pH
Towards Direct Additive Manufacturing of Bulk Ceramics Using Selective Laser Flash Sintering
Use of 2D Ti3C2 MXene as an Additive in SiC and Their High-Temperature Phase Behavior
Using Laser Ultrasonics to Correlate Young’s Modulus to Particle Neck Size in Early-Stage Sintering

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